public IActionResult Add(AddActivitiesViewModel addActivitiesViewModel)
        {
            if (ModelState.IsValid)
            {
                var        currentUserId = userManager.GetUserId(User);
                Activities newActivities = new Activities

                {
                    Name        = addActivitiesViewModel.Name,
                    Location    = addActivitiesViewModel.Location,
                    Description = addActivitiesViewModel.Description,
                    UrlLocation = addActivitiesViewModel.UrlLocation,
                    UserId      = currentUserId
                };

                context.Activities.Add(newActivities);
                context.SaveChanges();

                return(Redirect("/Activities"));
            }
            return(View(addActivitiesViewModel));
        }
        public IActionResult Add()
        {
            AddActivitiesViewModel addActivitiesViewModel = new AddActivitiesViewModel();

            return(View(addActivitiesViewModel));
        }